1. Departamento de Química OrgánicaFacultad de Ciencias QuímicasUniversidad Complutense 28040 Madrid Spain
2. Interdisciplinary Center for Molecular MaterialsDepartment of Chemistry and PharmacyFriedrich-Alexander Universität Erlangen-Nürnberg Egerlandstr. 3 91058 Erlangen Germany
3. Institute of Computational Chemistry and Catalysis and Department of ChemistryUniversity of Girona C/M. Aurèlia Capmany, 69 17003 Girona Spain
4. Institute of Organic Chemistry and BiochemistryAcademy of Sciences of Czech Republic Flemingo nám. 2 16610 Prague Czech Republic
5. Institució Catalana de Recerca i Estudis Avancats (ICREA) 08010 Barcelona Spain